Photodegradation of fertilizer solution - The Planted Tank Forum
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post #1 of 2 (permalink) Old 08-28-2019, 07:30 PM Thread Starter
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Question Photodegradation of fertilizer solution

Hi all,

I'm working on setting up my automatic fert station that includes two 1000 ml stock bottles that are clear. I won't be keeping these bottles in the cabinet so they will be getting light during the day.

I'm concerned that the light may photodegrade the chelate in the micro solution. If that's a possibility, then I would wrap it in something to make it dark. If not, I don't need to worry about it and it will be easier to see when I need to make more stock solution.

Any chemists out there that can tell me one way or the other? I assume that the bottles would last me about 90 days assuming a 10 ml dosing daily.

Thanks in advance.

Art


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post #2 of 2 (permalink) Old 08-29-2019, 12:05 AM
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Photodegradation of the chelation agent will definitely occur faster in the presence of light. I would wrap it in aluminum foil, though if you want ease of checking to see how much is remaining, you can leave a small slit uncovered
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